If there's one thing we should all be able to agree on, it's that all human beings belong to the same species, Homo sapiens. But a new study published in the Proceedings of the National Academy of Sciences (PNAS) on Monday has found a yawning gap between what people claim to believe and what they actually hold true. A team from Harvard and Tufts gathered data from more than 60,000 subjects who took part in 13 experiments that tested their implicit biases. An overwhelming majority—over 90 percent—explicitly stated that white people and non-white people are equally human. But on an...